/Engine/Plugins/Editor/GameplayTagsEditor/Source/GameplayTagsEditor/Public/SGameplayTagPicker.h
Given a property handle, try and enumerate the tag containers from within it (when dealing with a struct property of typeFGameplayTagorFGameplayTagContainer).
True if it was possible to enumerate containers (even if no containers were enumerated), or false otherwise.
static bool EnumerateEditableTagContainersFromPropertyHandle ( const [TSharedRef](API\Runtime\Core\Templates\TSharedRef)< [IPropertyHandle](API\Editor\PropertyEditor\IPropertyHandle) > & PropHandle, [TFunctionRef](API\Runtime\Core\GenericPlatform\TFunctionRef)< bool(const [FGameplayTagContainer](API\Runtime\GameplayTags\FGameplayTagContainer) &)> Callback )